Internal-combustion engine



March 18, 1930. w. s. COCHRANE INTERNAL COMBUSTION ENGINE0 Original Filed April 20, 19 27 N VENTOR c3. UUG'H/PANE.

QWILTER Patented Mar. 18, 1930.

uNiT-ED STATES "PATENT OFFIc WALTERS. cocn nenn, or DETROIT, MICHIGAN, essrelvon 'ro CHRYSLER conPonA- TION, or DETROIT, MICHIGAN, A conronerronor DELAWARE,

. INTERNAL-COMBUSTION ENGINE Original application filed al-1120,1927, Serial No. 185,208. Divided and this application filed December 9, 1927. Serial No. 23 ,791. 7

This invention relates to internal combustion engines, more particularly to an oil filler therefor, and is a division of my copendlng application, Serial No. 185,208, filed Aprll V vide a hinged cap for the'cover which may In ventilating the crankcase of an internal combustion engine, it is desirable to admit air into the crankcase through the oil filler, thru which lubricant is supplied to the'crankcase.

It is an important object of this lnvention to provide a novel cover for the filler pipe which may be adjusted with respect to the filler pipe, to vary the amount of air admitted therethrough, without admitting dirt.

Another object of the invention is to probe opened for filling the crankcase with lubricant without disturbing the other portions of the cover.

Other objects and advantages will-more fully appear from the following description taken in connection with the accompanying drawings in which r Fig. 1 is. a longitudinal sectional view,

partly through the crankcase and partly 7 through the valve chamber of an internal combustion engine.

Fig. 2 is a vertical sectional view through the engine.

Fig. 3 is a sectional view on line 33 of Fig.2 showing the preferred form of my invention.

Fig. 4 is a plan view of the filler, parts being broken away. I 7

'Referring to the drawings, I have shown an internal combustion engine in which an air' current is caused to flow through the crankcase in a circular direction. A cylinder head 10, cylinder block 12 and oil pan 14 have been shown, as of usual design. The crankshaft 16, connecting rods 18, pistons 20, camshaft 22 and valve mechanism 24 have been shown adapted to operate in the usual'manner. The lower portion of the cylinder block 12 and the oil pan 14 form a chamber -26 commonly called the crankcase in which the crankshaft rotates. A filler pipe 30 is mount ed on the side ofthe crankcase at its forward end and is designed to admit air to the crankcase 26. The rotation of the crankshaft causes a circular motion of the air and the air is then directedinto the valve chamber 84','through openings 36, andoutthrough a tail pipe 38 at the rear of the engine.

member 40, open at both ends, the lower end of which is in communication with the crankcase chamber 26. At the opposite or outer open end of the filler, Ihave provided acover which comprisesan outer member 42, cap 44 and sleeve 46. Openings48 are provided in the side of the member4O and the sleeve 46 is provided with openings 50 adapted to register with the openings 48. *The'sleeve 46' fits the outer periphery of the tubular member-40 and is provided with an inwardly turned flange 52 whichrests on the upper edge of the member 40. The sleeve 46 is angularly mov-' the flange 52 of the sleeve. A screw 56 seable for-closing'or opening the openings 48.; The outer member is spaced 'fromjthe tu-.

bular member 40 and sleeve 46, having an in cures the outer member in position and also i limits theangular movement of thesleeve 46; the screw being received ina'slot' 58 in the flange 52.- A downwardly extending, 0

flange 60, on the member 42 shields the-openings48 so that lubricant may be directed past the openingsintothe crankcase;

The lower edge of the outer member 42v is provided with fins 62 whichtend to separate the dirt fromthe airfdrawn into the filler pipe throughthe space between the'tubular member 40 and outer member .42 and through the openings 48. The outer member 42 has been 'shown in two pieces to facilitate'manufacture' but it is to be understood that it may be formed from. one integral member. struck up member'64, from the sleeve 46 pro jects through a slot-J66 inthe flange 54, providing a means for angularly; moving the sleeve 46 to openorclose the openings 48'. The cap 44 is hinged to the outer member V 7 42, as at 68, adapted toclose the openendof the filler. A resilient lip 70 engages a de- 'pression 72 in t-he'fouter member42 'tohold the cap in closed position-J While one particular adaptation of my in vention has been illustrated and described in detail, it is to be understood that various changes including size and arrangement of parts may bemade without departing from the spirit of my invention and it is not my intention to limit its scope other than by the terms of appended claims.

Vhat I claim is;

1. In an engine of the class described, a crankcase chamber, an oil filler for said chamber having an opening at its outer end and openings in the side thereof, a cover for said oil filler extending over said side openings and spaced from the sidewall of the filler, means for opening and closing said last named openings, and means for directing a current of air. through the space formed between said cover and the Wall of said filler through said side openings into said filler and said crankcase.

2; Inan engine of the class described, a crankcase chamber, an oil filler for said chamber having an opening at its outer end and openings in the side wall thereof, a cover for said oil filler extending over said side openings and spaced from the side wall of the filler, a plurality of fins at the lower edge of said cover between said cover and said filler wall, and means for directing a current of air through the space formed between said cover and the wall of said filler through said side openings into said filler and said crankcase.

In an engine of the class described, a crank case chamber, an oil filler for said chamber having an opening at its outer end and openings in the side wall thereof, a cover for said filler having a central opening and an inwardly extending flange around the periphery of said opening adapted to be received in the open end of said filler, means for securing said cover to said filler, a portion on said cover extending outwardly from said filler and downwardly over and spaced from the openings in the side of said filler, and a hinged cap secured to said cover for opening and closing the opening in said cover.

4:. In an engine of the class described, a crankcase chamber, an: oil filler for said chamber having an opening at its outer end and openings in the side wall thereof, a cover for said filler having a central opening and an inwardly extending flange around the periphery of said opening adapted to be received in the open end of said filler, means for securing said cover to said filler, means for opening and closing the openings in the side wall of said-filler operable through said cover, a portion on said cover extending 011twardly from said filler and downwardly over and spaced, f'romthe openings in the Side of said filler, and a-hinged cap secured itosaidcover for o ening a-nd'closing the openin in said cover,

5. In an engine of the class described, a crank case chamber, an oil filler for said chamber having an opening at its outer end and openings in the side wall thereof, a cover for said filler having a central opening and an inwardly extending flange around the periphery of said opening adapted to be received in the open end of said filler, means for securing said cover to said filler, a portion on said cover extending outwardly from said filler and downwardly over and spaced from the openings in the side of said filler, a plurality of fins at the lower edge of said cover between said cover and said filler wall, and a cap for closing the opening in said cover. I

WALTER S. GOOHRANE. 

